I have setup Jitsi on a server running Ubuntu 18.04.
I have three laptops for testing on.
The error I get with my Mac Book Pro #1 running Chrome version 81.0.4044.92. The error:
[modules/RTC/BridgeChannel.js] <e.value> Bridge Channel send: no opened channel.
What is strange there is no issue with Firefox and a down version of Chrome.
Mac Book Pro #1
MAC OS 10.15.4 (19E287)
DOSE NOT WORK: Chrome Version: 81.0.4044.92 (Official Build) (64-bit)
ERROR: Bridge Channel send: no opened Channel
Works Fir: FireFox Version 75.0 (64-bit)
Mac Book Pro#2
MAC OS 10.15.4
Works: Chrome Version: 80.3987.163 (Official Build) (64-Bit)
Works: Chrome Version 80.0.3987.163
Works: FireFox Version:75.04